Tire for vehicle-wheels.



E. B. KILLEN.

TIRE FOR VEHICLE WHEELS.

APPLICATION 21mm 1312.4. 1901.

Patented Apr.,4,1911Q Egg/aw 9 44/ 1am EDWARD BIB-ICE KILLEN, OF LONDON,ENGLAND.

TIRE FOR VEHICLE-WHEELS.

Specification of Letters Patent.

Patented Apr. 4, 1911.

Application filed April 4, 1907. Serial No. 366,386.

To all whom 'it may concern:

Be it known that I, EDWARD BRIGE K11,- LEN, of 52 Queen Victoria street,London, England, en 'neer, have invented a certain new and use ul Tirefor Vehicle-Wheels, of which the following is a specification.

This invention relates to improvements in and connected with rubbertreads or tires for wheels.

In order that my invention may be properly understood and readilycarried into effect, I have hereunto appended one sheet of drawings, ofwhich Figures 1, 2, 3, 4 and 5 are sections of parts of different formsof rubber treads. Figs. 6 and 7 are plans of parts of different forms ofrubber treads.

My invention relates to tires having embedded metal binding rim or rimsA, (see Figs. 1, 2, and 5). In the arrangement shown in Figs. 3 and 4:an outer rim A overlies the resillent rim D.

The tires may be of rubber from the outer treading periphery C to theinner bearing face D (see Figs. 1, 2, 5) or they may be of rubber onlyalong the inside bearing face D (see Figs. 3 and 4;), provided that thebase portion D of the rubber is of sufficient thickness to be fitted inan eflicient manner under compression, over the rim proper E of thewheel to prevent any creeping between the outer tire and the wheelproper, and without the tire coming off.

Although the tires according to my invention, are especially applicablefor bus tires and those used for heavy traffic, they are alsoadvantageous for use in lighter traffic.

It has heretofore been proposed to provide a tire constructed alongthese general lines but wherein it was necessary to employ a sustainingrim encircling the tire and provided at intervals throughout itscircumference with perforations through which projected portions of therubber tire. In the present case, however, this sustaining rim isdispensed with and in lieu thereof the tire proper is constructedcircumferentially continuous and with an unbroken or uninterruptedtread. By practical demonstration this has been found to be equally asefficient as in the former instance, and there is the further advantagethat the cost of the sustaining rim is eliminated and a more simple andneat appearing tire presented.

By the use of my present invention, the present steel binding or bindingrim or rims or their equivalents hitherto used in some tires may bedispensed with, but the base D, of the tire instead of being formed in asolid mass of rubber which is practically non-elastic internally asconstructed and attached for heavy traffic to-day, and which mass ofrubber is strained in action beyond its elastic limit, and thereforedeteriorates from the first day itis attached over a wheel proper, ismade elastic at its base with a limited thickness of rubber in its crosssection which base D can spread out both externally and internally whenattached in position over a wheel proper, see Figs. 1, 2, 3, 4, 5, 6 and7 not only preventing such deterioration in action, but also adding tothe tires efficiency as an absorber of vibration, and preventing therubber becoming hard as a result of long continued compression andgeneration of great heat.

According to my present invention I provide a plurality of recesses F inthe base circumference D of the tire preferably in zigzag (see Figs. 6and 4:) or equivalent position at say about a} of an inch (or more asrequired) apart from each other so as to get the equivalent of almost acontinuous air space or spreading room in the center of the base oftire, and I close some or all of the open bases of the air spaces F withsuitable detachable or loose disks or washers Gr, see Figs. 1, 2, 3, 4:and 5 in some or all of which disks or washers G, I tap or make screwholes to take the tops of suitable screw bolts I. The said disks orwashers G fit ti htly and suitably into said air spaces F an are fittedtherein before the tire is fitted on under compression.

WVhen the tire is fitted in proper position, over wheel proper I passsuitable screw bolts I right through the folly J and steel binding rim Eof wheel proper, or through the steel treading rim of a metal wheelscrewing the ends of said bolts home into such of the tapped embeddeddisks or washers G as have been provided with suitable screw holes,thereby making creeping or movement of the tire on the wheel properimpossible, and efficiently attaching or holding the elastic rubber ringbase D of the tire rigidly on the wheel proper, and giving at the sametime the required space in the base D, or inner circumference of thetire to enable the rubber in the tire itself to stretch under load orheavy shocks.

Instead of molding the spaces in zig-zag orequivalent positions asdescribed above, and shown in Figs. 6 and 4 I may mold or make thespaces in a line in each part of a double tire, 2'. 6., in the twoseparate rings of the double tire, and so place the rings over the sameWheel that the holes of one tread occupy a position in the middlebetween the holes of the other tread, see Figs. 2, 5 and 7, or I canmake a single row of air spaces F in a tire if required, see Fig. 3.

Inthese treads or tires I prefer that the rubber should be molded sothat the base D is one continuous piece of rubber forming when inposition on the wheel a truly circular ring, but if required the basecan "be made in sections provided said sections are so attached to thewheel proper that they can not be pulled out of their positions underwear and tear.

Claims.

1. The 'conIbina-tion with the felly and rim of a vehicle wheel, of atire therefor comprising a resilient tread body having a plurality ofrecesses on the inner periphery thereof and overlying the wheel rim,washers seated Within said recesses, and bolts passing through the fellyand rim, and secured 'to said "Washers.

2. The combination with the felly and rim of a vehicle wheel, of a tiretherefor comprising a resilient tread body having a plurality ofrecesses on the inner periphery thereof and overlying the wheel rim,said recesses being of substantially conical design, waShers ofsubstantially conical design seated within the said recesses andproviding rim of a vehicle Wheel, of a tire thereforcomprising aresilient tread body having a plurality of recesses on the innerperiphery thereof and overlying the wheel rim, circumferential bandsembedded Within theresilient body and having apertures registering withthe recesses therein, washers of substantially conical design seatedwithin said registering apertures and "providing therewith cushioningmeans, and bolts passing radially through the felly and rim and havingscrew threaded connection with said washers.

i. The combination with the fell-y and rim of a vehicle wheel, of a tiretherefor comprising a resilient tread body having a plurality ofrecesses on the inner periphery thereof and overlying the wheel. rim,circumferential reinforcing means embedded within the tread body andsurrounding each of said recesses, washers seated within and closing therecesses and providing cushioning means therewith, and bolts passingradially through the felly and rim and having screw threaded connectionwith said washers.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

EDWVATRI) BEIGE K ILLEN. ivitnesses:

VVLLLIAM HENRY OOTTINGTON, Emvnsr ARTHUR Frsrrwron.

Copies of this patent may be obtained for five'cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

